/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/GroupEdgeInserter.h
struct FOptionalOutputParams
TSet< int32 > &...
ChangedTidsOut
Any triangle IDs whose triangles were deleted or changed by the operation (but not newly created tids).
TSet< int32 > &...
NewEidsOut
Edge IDs of the edges composing the newly inserted group edges.
TSet< int32 > &...
ProblemGroupEdgeIDsOut
In loop insertion, the group edge IDs in the original topology that surround non-quad-like groups that stopped the loop.